// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)

/*
 * BTF-to-C dumper tests for bitfield.
 *
 * Copyright (c) 2019 Facebook
 */
#include <stdbool.h>

/* ----- START-EXPECTED-OUTPUT ----- */
/*
 *struct bitfields_only_mixed_types {
 *      int a: 3;
 *      long b: 2;
 *      _Bool c: 1;
 *      enum {
 *              A = 0,
 *              B = 1,
 *      } d: 1;
 *      short e: 5;
 *      int: 20;
 *      unsigned int f: 30;
 *};
 *
 */
/* ------ END-EXPECTED-OUTPUT ------ */

struct bitfields_only_mixed_types {
        int a: 3;
        long b: 2;
        bool c: 1; /* it's really a _Bool type */
        enum {
                A, /* A = 0, dumper is very explicit */
                B, /* B = 1, same */
        } d: 1;
        short e: 5;
        /* 20-bit padding here */
        unsigned f: 30; /* this gets aligned on 4-byte boundary */
};

/* ----- START-EXPECTED-OUTPUT ----- */
/*
 *struct bitfield_mixed_with_others {
 *      char: 4;
 *      int a: 4;
 *      short b;
 *      long c;
 *      long d: 8;
 *      int e;
 *      int f;
 *};
 *
 */
/* ------ END-EXPECTED-OUTPUT ------ */
struct bitfield_mixed_with_others {
        char: 4; /* char is enough as a backing field */
        int a: 4;
        /* 8-bit implicit padding */
        short b; /* combined with previous bitfield */
        /* 4 more bytes of implicit padding */
        long c;
        long d: 8;
        /* 24 bits implicit padding */
        int e; /* combined with previous bitfield */
        int f;
        /* 4 bytes of padding */
};

/* ----- START-EXPECTED-OUTPUT ----- */
/*
 *struct bitfield_flushed {
 *      int a: 4;
 *      long: 60;
 *      long b: 16;
 *};
 *
 */
/* ------ END-EXPECTED-OUTPUT ------ */
struct bitfield_flushed {
        int a: 4;
        long: 0; /* flush until next natural alignment boundary */
        long b: 16;
};

int f(struct {
        struct bitfields_only_mixed_types _1;
        struct bitfield_mixed_with_others _2;
        struct bitfield_flushed _3;
} *_)
{
        return 0;
}